timdjinks timdjinks

30-04-2020
Physics

contestada

What is one difference between an electromagnetic wave and a mechanical wave?
A
An electromagnetic wave can travel through a vacuum. A mechanical wave must have a medium to travel through.

B
An electromagnetic wave moves parallel to the direction of the wave's travel. A mechanical wave can move only perpendicular to the direction of the wave's travel.

C
An electromagnetic wave moves perpendicular to the direction of the wave's travel. A mechanical wave can move only parallel to the direction of the wave's travel.

D
A mechanical wave can travel through a vacuum. An electromagnetic wave must have a medium to travel through.

Respuesta :

maydeleine1211 maydeleine1211

01-05-2020

Electromagnetic waves are waves that have no medium to travel whereas mechanical waves need a medium for its transmission. Electromagnetic waves travel in a vacuum whereas mechanical waves do not. ... While an electromagnetic wave is called just a disturbance, a mechanical wave is considered a periodic disturbance.

The answer is A :)

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